Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation - Narratives (Details)

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Stock-Based Compensation - Narratives (Details) - USD ($)
12 Months Ended 17 Months Ended
Dec. 27, 2018
Oct. 02, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Oct. 03, 2017
May 04, 2016
Share-based Compensation Arrangement by Share-based Payment Award                
Proceeds from stock options exercised     $ 3,975,000 $ 131,000 $ 0      
Stock compensation expense     18,225,000 19,464,000 8,799,000      
Stock compensation expense, tax benefit     $ 3,943,000 $ 4,809,000 $ 3,350,000      
Stock Option                
Share-based Compensation Arrangement by Share-based Payment Award                
Expiration period     10 years          
Intrinsic value of stock options exercised     $ 3,615,000          
Proceeds from stock options exercised     3,975,000          
Unrecognized stock-based compensation expense, options     $ 813,000          
Unrecognized stock-based compensation expense, period for recognition     8 months 1 day          
Restricted Stock Awards                
Share-based Compensation Arrangement by Share-based Payment Award                
Granted (shares) 14,498 21,067 0 14,498 51,907      
Fair value of awards vested     $ 1,543,000 $ 3,493,000 $ 2,608,000      
Restricted Stock Units                
Share-based Compensation Arrangement by Share-based Payment Award                
Granted (shares)     1,245,628 161,598 1,654,690      
Fair value of awards vested     $ 8,493,000 $ 13,628,000 $ 0      
Unrecognized stock-based compensation expense, other than options     $ 18,045,000          
Unrecognized stock-based compensation expense, period for recognition     1 year 7 months 17 days          
Performance Stock Units                
Share-based Compensation Arrangement by Share-based Payment Award                
Granted (shares)     550,676 0 0      
Award vesting period     3 years          
Fair value of awards vested     $ 0 $ 0 $ 0      
Unrecognized stock-based compensation expense, other than options     $ 6,186,000          
Unrecognized stock-based compensation expense, period for recognition     2 years 1 month 28 days          
Performance Shares                
Share-based Compensation Arrangement by Share-based Payment Award                
Stock compensation expense     $ 0 $ 0 $ 0      
Performance Shares | Exit event exceeding threshold                
Share-based Compensation Arrangement by Share-based Payment Award                
Award vesting percentage     100.00%          
2016 Stock Incentive Plan                
Share-based Compensation Arrangement by Share-based Payment Award                
Shares authorized (shares)               8,017,038
Share awards issued (shares)           7,644,518    
2017 Omnibus Incentive Plan                
Share-based Compensation Arrangement by Share-based Payment Award                
Shares reserved for issuance (shares)             7,344,000  
Number of shares available for grant (shares)     3,980,449       372,520  
Director | Restricted Stock Units                
Share-based Compensation Arrangement by Share-based Payment Award                
Award vesting period     1 year          
Employee | Restricted Stock Units                
Share-based Compensation Arrangement by Share-based Payment Award                
Award vesting period     3 years          
Minimum | Performance Stock Units                
Share-based Compensation Arrangement by Share-based Payment Award                
Award vesting percentage     0.00%          
Maximum | Performance Stock Units                
Share-based Compensation Arrangement by Share-based Payment Award                
Award vesting percentage     200.00%